The pursuit of advanced functionalities in topological photonic devices motivates studies of active, tunable and nonreciprocal structures driven by nonlinear effects. In article number 1900223, Daria A. Smirnova, Yuri S. Kivshar, and co‐workers reveal the unified origin of topological edge states and self‐trapped nonlinear modes residing in nontrivial band gaps and shows how topological edge states can be efficiently excited by scattered gap solitons.

中文翻译：

---

拓扑边缘状态：非线性Dirac模型中的拓扑边缘状态和间隙孤子（Laser Photonics Rev.13（12）/ 2019）

对拓扑光子设备中先进功能的追求，激发了对由非线性效应驱动的有源，可调谐和不可逆结构的研究。在编号1900223中，Daria A. Smirnova，Yuri S. Kivshar和他的同事揭示了存在于非平整带隙中的拓扑边缘状态和自陷非线性模式的统一起源，并展示了散射如何有效激发拓扑边缘状态间隙孤子。